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Finding the Fourth Proportional to 39,945, 59,837.29 and 19,894.08

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Solution

The fourth proportional to 39,945, 59,837.29 and 19,894.08 is: 29,801.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,945 : 59,837.29 = 19,894.08 : x
  2. Step 2: Convert to fraction form
    39,945/59,837.29 = 19,894.08/x
  3. Step 3: Cross multiply
    39,945x = 59,837.29 × 19,894.08
  4. Step 4: Simplify right side
    39,945x = 1,190,407,834.24
  5. Step 5: Solve for x
    x = 1,190,407,834.24/39,945
  6. Step 6: Final answer
    x = 29,801.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.